JPH0227562U - - Google Patents
Info
- Publication number
- JPH0227562U JPH0227562U JP10645588U JP10645588U JPH0227562U JP H0227562 U JPH0227562 U JP H0227562U JP 10645588 U JP10645588 U JP 10645588U JP 10645588 U JP10645588 U JP 10645588U JP H0227562 U JPH0227562 U JP H0227562U
- Authority
- JP
- Japan
- Prior art keywords
- bridge circuit
- impedance
- measured
- electrode
- shield case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図ａは本考案の一実施例の構成概念図、第
１図ｂは第１図ａに示す実施例の変形例を示す構
成概念図、第２図は本考案の他の実施例の構成概
念図、第３図は更に他の実施例の構成概念図、第
４図は更にまた他の実施例の構成概念図、第５図
は更に他の実施例の構成概念図、第６図は更にま
た他の実施例の構成概念図、第７図は更に他の実
施例の構成概念図である。
〔符号の説明〕、１，１１，２１，３１，４１
，５１，６１，７１……水分計の電極装置、２…
…非接地電極、３……交流ブリツジ用回路、４…
…インピーダンス変換回路、５……静電シールド
・ケース、６……信号線、８……接地電極、Ｉ…
…被測定物。
Figure 1a is a conceptual diagram of the construction of one embodiment of the present invention, Figure 1b is a conceptual diagram of a modification of the embodiment shown in Figure 1a, and Figure 2 is a conceptual diagram of another embodiment of the invention. FIG. 3 is a conceptual diagram of the construction of yet another embodiment; FIG. 4 is a conceptual diagram of yet another embodiment; FIG. 5 is a conceptual diagram of yet another embodiment; FIG. 7 is a conceptual diagram of the construction of still another embodiment, and FIG. 7 is a conceptual diagram of the construction of still another embodiment. [Explanation of symbols], 1, 11, 21, 31, 41
, 51, 61, 71... Moisture meter electrode device, 2...
...Ungrounded electrode, 3...AC bridge circuit, 4...
... Impedance conversion circuit, 5 ... Electrostatic shield case, 6 ... Signal line, 8 ... Ground electrode, I ...
...Object to be measured.
Claims (1)
せて電極間容量を測定し水分含有度合を得る水分
計において、 非接地電極の被測定物に面しない部分を囲む静
電シールド・ケースを設けると共に、その静電シ
ールド・ケースの内部に、前記電極間容量と協働
して交流ブリツジ回路を形成する交流ブリツジ用
回路と、その交流ブリツジ用回路の出力信号を高
入力インピーダンスで受けて低出力インピーダン
スで送出するインピーダンス変換回路とを設置し
、且つ、そのインピーダンス変換回路から前記静
電シールド・ケース外に信号線を引き出したこと
を特徴とする水分計の電極装置。[Scope of Claim for Utility Model Registration] In a moisture meter that measures the capacitance between the electrodes by interposing the object to be measured between the grounded electrode and the ungrounded electrode to determine the moisture content, the part of the ungrounded electrode that does not face the object to be measured. An electrostatic shielding case surrounding the AC bridge circuit is provided, and an AC bridge circuit is provided inside the electrostatic shield case to form an AC bridge circuit in cooperation with the interelectrode capacitance, and an output signal of the AC bridge circuit is provided. an impedance conversion circuit that receives the signal with high input impedance and sends it out with low output impedance, and a signal line is drawn out from the impedance conversion circuit to the outside of the electrostatic shield case. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645588U JPH0227562U (en) | 1988-08-10 | 1988-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645588U JPH0227562U (en) | 1988-08-10 | 1988-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0227562U true JPH0227562U (en) | 1990-02-22 |
Family
ID=31339987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10645588U Pending JPH0227562U (en) | 1988-08-10 | 1988-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0227562U (en) |
-
1988
- 1988-08-10 JP JP10645588U patent/JPH0227562U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63141406U (en) | ||
| JPS62156836U (en) | ||
| JPH0227562U (en) | ||
| JPS61140977U (en) | ||
| JPH0428027Y2 (en) | ||
| JPS6039926U (en) | Capacitive displacement meter | |
| JPS62170538U (en) | ||
| JPS63152503U (en) | ||
| JPS63148863U (en) | ||
| JPS58178629U (en) | capacitive vortex detector | |
| JPS61146729U (en) | ||
| JPS5886518U (en) | Capacitive displacement detection installation | |
| JPS59107443U (en) | Capacitive proximity switch | |
| JPS6453923U (en) | ||
| JPS59194246U (en) | Vacuum cutter | |
| JPS61158869U (en) | ||
| JPS6235229U (en) | ||
| JPS58175427U (en) | capacitive level switch | |
| JPS59155812U (en) | gas insulated switchgear | |
| JPS6451835U (en) | ||
| JPS6189104U (en) | ||
| JPS5834030U (en) | Differential pressure/pressure transmitter | |
| JPS58101141U (en) | Bathtub water level detection device | |
| JPS6321874U (en) | ||
| JPS59104006U (en) | displacement meter |